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Finding the Fourth Proportional to 75,376.80, 104,015.88 and 41,378.58

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Solution

The fourth proportional to 75,376.80, 104,015.88 and 41,378.58 is: 57,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,376.80 : 104,015.88 = 41,378.58 : x
  2. Step 2: Convert to fraction form
    75,376.80/104,015.88 = 41,378.58/x
  3. Step 3: Cross multiply
    75,376.80x = 104,015.88 × 41,378.58
  4. Step 4: Simplify right side
    75,376.80x = 4,304,029,411.85
  5. Step 5: Solve for x
    x = 4,304,029,411.85/75,376.80
  6. Step 6: Final answer
    x = 57,100.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.